398259037 has 12 divisors (see below), whose sum is σ = 438389280. Its totient is φ = 361529960.

The previous prime is 398259023. The next prime is 398259049. The reversal of 398259037 is 730952893.

It is a de Polignac number, because none of the positive numbers 2^k-398259037 is a prime.

It is a super-2 number, since 2×398259037² = 317220521104334738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (398259067) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 99558 + ... + 103480.

It is an arithmetic number, because the mean of its divisors is an integer number (36532440).

Almost surely, 2^398259037 is an apocalyptic number.

It is an amenable number.

398259037 is a deficient number, since it is larger than the sum of its proper divisors (40130243).

398259037 is a wasteful number, since it uses less digits than its factorization.

398259037 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4784 (or 4773 counting only the distinct ones).

The product of its (nonzero) digits is 408240, while the sum is 46.

The square root of 398259037 is about 19956.4284630291. The cubic root of 398259037 is about 735.7357846951.

The spelling of 398259037 in words is "three hundred ninety-eight million, two hundred fifty-nine thousand, thirty-seven".